Falling Behind

I am falling behind. I feel like I have so many things to do, but when I go to do them, I can't figure out what it is that I need to do. I have things for my sorority and projects for my classes and I'm just struggling balancing everything. I feel like I'm starting to do a little better though! It's just hard remembering when everything is due for what class. I'm thinking of getting a huge table calendar and writing everything on that so it's always there when I can see it. I'm not sure what else to do though so if anyone has any ideas I would really appreciate any advice!!